Development of precision casting


Release time:

2023-06-20

Precision casting is also called lost wax casting. Its products are precise, complex, and close to the final shape of the parts, and can be used directly without or with little processing. Therefore, investment casting is an advanced technology near net shape.

Precision casting is also called lost wax casting. Its products are precise, complex, and close to the final shape of the parts, and can be used directly without or with little processing. Therefore, investment casting is an advanced technology near net shape.

In ancient my country: Wang Ziwu Ding, Bronze Ban, Bronze Lion, etc., are all masterpieces of investment casting. Since investment casting was used in industrial production in the 1940s, it has been developing at a relatively fast speed for half a century. Especially European and American countries are developing rapidly. Investment casting is used in almost all industrial sectors, especially electronics, petroleum, chemical, energy, transportation, light industry, textiles, pharmaceuticals, medical equipment, pumps and valves, in addition to aviation and weapons sectors. In recent years, my country has also developed rapidly.

The development of investment casting technology enables investment casting to produce not only small castings, but also larger castings. The outline size of the largest investment casting is nearly 2m, while the minimum wall thickness is less than 2mm. At the same time, investment castings are also more Precision, in addition to linear tolerances, parts can also achieve high geometric tolerances. The surface roughness of investment castings is also getting smaller and smaller, reaching Ra0.4μm.